19728370

素因数分解:

$2^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{4051}}^1$

素因数の和:4545

約数の個数: 16

約数和(自身を含む): 35592768

約数和(自身を除く): 15864398

約数列:

[1, 2, 5, 10, 487, 974, 2435, 4051, 4870, 8102, 20255, 40510, 1972837, 3945674, 9864185, 19728370]

約数ペア:

[(1, 19728370), (2, 9864185), (5, 3945674), (10, 1972837), (487, 40510), (974, 20255), (2435, 8102), (4051, 4870)]